Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
CloudHealth - CloudHealth is IT service management for the cloud, enabling policy driven cost, utilization, performance and security optimization.
nginx - A high performance free open source web server powering busiest sites on the Internet.
Cloudability - Cloudability lets you monitor, manage and communicate your cloud costs with one easy tool.
vCenter Server - IaaS platform for managing and deploying virtual machines
CloudCruiser - Cloud Cruiser delivers cloud cost management and cloud spending management for AWS, Azure, and Google Cloud Platform.